mirror of
https://github.com/jlengrand/openapi-generator.git
synced 2026-05-11 00:21:18 +00:00
moved to modules per #411
This commit is contained in:
Tony Tam
@@ -0,0 +1,283 @@
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package {{invokerPackage}};
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import com.fasterxml.jackson.core.JsonGenerator.Feature;
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import com.fasterxml.jackson.databind.*;
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import com.fasterxml.jackson.annotation.*;
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import com.fasterxml.jackson.databind.annotation.JsonSerialize;
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import org.apache.http.*;
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import org.apache.http.client.*;
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import org.apache.http.client.methods.*;
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import org.apache.http.conn.*;
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import org.apache.http.conn.scheme.*;
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import org.apache.http.conn.ssl.*;
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import org.apache.http.entity.StringEntity;
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import org.apache.http.impl.client.*;
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import org.apache.http.impl.conn.*;
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import org.apache.http.params.*;
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import org.apache.http.util.EntityUtils;
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import java.io.File;
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import java.net.Socket;
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import java.net.UnknownHostException;
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import java.net.URLEncoder;
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import java.util.Map;
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import java.util.HashMap;
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import java.util.List;
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import java.io.IOException;
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import java.io.UnsupportedEncodingException;
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import java.security.GeneralSecurityException;
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import java.security.KeyManagementException;
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import java.security.KeyStore;
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import java.security.NoSuchAlgorithmException;
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import java.security.SecureRandom;
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import java.security.cert.*;
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import java.text.DateFormat;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.Random;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import javax.crypto.Mac;
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import javax.crypto.spec.SecretKeySpec;
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import javax.net.ssl.SSLContext;
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import javax.net.ssl.TrustManager;
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import javax.net.ssl.X509TrustManager;
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public class ApiInvoker {
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private static ApiInvoker INSTANCE = new ApiInvoker();
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private Map<String, String> defaultHeaderMap = new HashMap<String, String>();
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private HttpClient client = null;
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private boolean ignoreSSLCertificates = false;
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private ClientConnectionManager ignoreSSLConnectionManager;
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public ApiInvoker() {
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initConnectionManager();
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}
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public static ApiInvoker getInstance() {
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return INSTANCE;
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}
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public void ignoreSSLCertificates(boolean ignoreSSLCertificates) {
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this.ignoreSSLCertificates = ignoreSSLCertificates;
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}
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public void addDefaultHeader(String key, String value) {
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defaultHeaderMap.put(key, value);
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}
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public String escapeString(String str) {
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return str;
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}
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public static Object deserialize(String json, String containerType, Class cls) throws ApiException {
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try{
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if("List".equals(containerType)) {
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JavaType typeInfo = JsonUtil.getJsonMapper().getTypeFactory().constructCollectionType(List.class, cls);
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List response = (List<?>) JsonUtil.getJsonMapper().readValue(json, typeInfo);
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return response;
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}
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else if(String.class.equals(cls)) {
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if(json != null && json.startsWith("\"") && json.endsWith("\"") && json.length() > 1)
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return json.substring(1, json.length() - 2);
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else
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return json;
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}
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else {
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return JsonUtil.getJsonMapper().readValue(json, cls);
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}
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}
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catch (IOException e) {
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throw new ApiException(500, e.getMessage());
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}
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}
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public static String serialize(Object obj) throws ApiException {
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try {
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if (obj != null)
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return JsonUtil.getJsonMapper().writeValueAsString(obj);
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else
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return null;
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}
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catch (Exception e) {
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throw new ApiException(500, e.getMessage());
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}
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}
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public String invokeAPI(String host, String path, String method, Map<String, String> queryParams, Object body, Map<String, String> headerParams, String contentType) throws ApiException {
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HttpClient client = getClient(host);
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StringBuilder b = new StringBuilder();
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for(String key : queryParams.keySet()) {
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String value = queryParams.get(key);
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if (value != null){
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if(b.toString().length() == 0)
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b.append("?");
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else
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b.append("&");
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b.append(escapeString(key)).append("=").append(escapeString(value));
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}
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}
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String url = host + path + b.toString();
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HashMap<String, String> headers = new HashMap<String, String>();
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for(String key : headerParams.keySet()) {
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headers.put(key, headerParams.get(key));
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}
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for(String key : defaultHeaderMap.keySet()) {
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if(!headerParams.containsKey(key)) {
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headers.put(key, defaultHeaderMap.get(key));
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}
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}
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headers.put("Accept", "application/json");
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HttpResponse response = null;
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try{
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if("GET".equals(method)) {
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HttpGet get = new HttpGet(url);
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get.addHeader("Accept", "application/json");
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for(String key : headers.keySet()) {
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get.setHeader(key, headers.get(key));
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}
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response = client.execute(get);
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}
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else if ("POST".equals(method)) {
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HttpPost post = new HttpPost(url);
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if (body != null) {
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post.setHeader("Content-Type", contentType);
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post.setEntity(new StringEntity(serialize(body), "UTF-8"));
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}
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for(String key : headers.keySet()) {
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post.setHeader(key, headers.get(key));
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}
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response = client.execute(post);
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}
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else if ("PUT".equals(method)) {
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HttpPut put = new HttpPut(url);
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if(body != null) {
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put.setHeader("Content-Type", contentType);
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put.setEntity(new StringEntity(serialize(body), "UTF-8"));
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}
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for(String key : headers.keySet()) {
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put.setHeader(key, headers.get(key));
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}
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response = client.execute(put);
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}
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else if ("DELETE".equals(method)) {
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HttpDelete delete = new HttpDelete(url);
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for(String key : headers.keySet()) {
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delete.setHeader(key, headers.get(key));
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}
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response = client.execute(delete);
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}
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else if ("PATCH".equals(method)) {
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HttpPatch patch = new HttpPatch(url);
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if (body != null) {
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patch.setHeader("Content-Type", contentType);
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patch.setEntity(new StringEntity(serialize(body), "UTF-8"));
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}
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for(String key : headers.keySet()) {
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patch.setHeader(key, headers.get(key));
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}
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response = client.execute(patch);
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}
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int code = response.getStatusLine().getStatusCode();
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String responseString = null;
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if(code == 204)
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responseString = "";
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else if(code >= 200 && code < 300) {
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if(response.getEntity() != null) {
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HttpEntity resEntity = response.getEntity();
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responseString = EntityUtils.toString(resEntity);
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}
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}
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else {
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if(response.getEntity() != null) {
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HttpEntity resEntity = response.getEntity();
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responseString = EntityUtils.toString(resEntity);
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}
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else
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responseString = "no data";
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throw new ApiException(code, responseString);
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}
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return responseString;
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}
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catch(IOException e) {
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throw new ApiException(500, e.getMessage());
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}
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}
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private HttpClient getClient(String host) {
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if (client == null) {
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if (ignoreSSLCertificates && ignoreSSLConnectionManager != null) {
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// Trust self signed certificates
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client = new DefaultHttpClient(ignoreSSLConnectionManager, new BasicHttpParams());
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} else {
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client = new DefaultHttpClient();
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}
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}
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return client;
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}
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private void initConnectionManager() {
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try {
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final SSLContext sslContext = SSLContext.getInstance("SSL");
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// set up a TrustManager that trusts everything
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TrustManager[] trustManagers = new TrustManager[] {
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new X509TrustManager() {
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public X509Certificate[] getAcceptedIssuers() {
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return null;
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}
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public void checkClientTrusted(X509Certificate[] certs, String authType) {}
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public void checkServerTrusted(X509Certificate[] certs, String authType) {}
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}};
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sslContext.init(null, trustManagers, new SecureRandom());
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SSLSocketFactory sf = new SSLSocketFactory((KeyStore)null) {
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private javax.net.ssl.SSLSocketFactory sslFactory = sslContext.getSocketFactory();
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public Socket createSocket(Socket socket, String host, int port, boolean autoClose)
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throws IOException, UnknownHostException {
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return sslFactory.createSocket(socket, host, port, autoClose);
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}
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public Socket createSocket() throws IOException {
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return sslFactory.createSocket();
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}
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};
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sf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
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Scheme httpsScheme = new Scheme("https", sf, 443);
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SchemeRegistry schemeRegistry = new SchemeRegistry();
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schemeRegistry.register(httpsScheme);
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schemeRegistry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
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ignoreSSLConnectionManager = new SingleClientConnManager(new BasicHttpParams(), schemeRegistry);
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} catch (NoSuchAlgorithmException e) {
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// This will only be thrown if SSL isn't available for some reason.
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} catch (KeyManagementException e) {
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// This might be thrown when passing a key into init(), but no key is being passed.
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} catch (GeneralSecurityException e) {
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// This catches anything else that might go wrong.
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// If anything goes wrong we default to the standard connection manager.
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}
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}
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}
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